F=G(gravitational constant)X Mass 1(earth)X Mass 2 (ball), divided by radius distance between centre of objects squared
medicin ball would accelerate faster and hit the ground first, but with such a miniscule difference that there isn't techonolgy out there to observe the difference
@petey19d No, no, no! the force is different but the acceleration is not. The accelerations are exactly the same. Air resistance also has virtually zero effect on this scale.
@hmehlenbacher everything he says is true in a real environment - this is not just theory. With or without air resistance the black ball accelerates at the same rate. Air resistance has a negligible effect at these speeds.
I am not so sure that this is a conceptual problem so much as a terminology problem. It seems like they are using field force to mean field, and velocity to mean acceleration.
@1veritasium It can be indicative of a conceptual problem but does not have to be. You may use the word "green" to refer to the color of a clover, a lime and a pine tree, but that does not mean you don't understand that the colors are not the same. The way you could distinguish this is to give them the definitions of the words ahead of time and then ask them if objects fall at constant velocities, accelerations or neither.
@michalchik true, but velocity and acceleration are not as similar as different shades of green. And second I'm pretty sure all of these people could give me reasonably good definitions of constant velocity and acceleration. Course it never hurts to ask.
This would be easy to answer except this guy is purposely confusing them. He would interchange weight (Fg) with gravitational force(Fg) but they are the same thing but the people though he meant gravitational force (Fg) as in the gravitational pull (g).
Im 2 months into Physics 11 and i know the difference but this guy is screwing with them. Understandably i think he was doing this to see if they were just agreeing with what he was saying blindly or not.
@mrimover18forsuremhm there was no aim to confuse. Weight, gravitational force, and gravitational pull are all the same thing (Fg). Gravitational acceleration is different. I used the words they used.
@1veritasium Yes, but they're using "force" to mean "gravitational field"... I think. Trying to work out what I was thinking I noticed that I do not instinctivly explain the physics correctly.
@Gytax0 Wrong. Weight IS gravitational pull, as in that is the DEFINITION of the word weight. Weight doesn't depend on anything except your position in a gravitational field and your mass.
Technically @ 1:44 There are certain parts of the world that have higher or lower gravitational pull based on how land mass and certain elements are deposited throughout the earth..
How can people be so stupid to say they go at a constant speed? What happens when you hold the ball? It stays still. And when you let it go? It starts moving downwards, there is no sudden jump in speed, it accelerates faster all the time from zero until it hits the ground, or when the air resistance becomes too big. God that made me feel smart. lol
Weight is a measure of force for fucks sake. The acceleration due to gravity is constant on all objects, but the mass of an object determines the force i.e. weight of an object being dropped on Earth up until terminal velocity. That is when the force of wind resistance is equal to that of weight impaired by friction.
Anyone hear what he said at the end? INERTIA? Go back to school y'all! The "Force" acting upon the balls is gravity. Dropped @ the same time, heavier ball takes LONGER to get to top speed. The heavier one would then ultimately drop FASTER when it reaches it's max speed because of the force of gravity on an object having more mass...In this test...it appears even...in a longer drop, black ball would be farther ahead by far...
If you get both balls drop them out of a plane the black ball will hit first because it has a greater terminal velocity. At a short distance like that the effects are very subtle so it appears that they hit at the same time.
The heavier ball should, in theory, hit the ground first even on an airless body such as the moon as the heavier ball has greater mass, and therefore a slightly greater gravity of its own. Strange, unnoticeable, but true.
@versiera if you want to be pedantic about it you could also say that the black ball has a greater mass; therefore a stronger gravitational pull on the earth towards it
The worst part is that he is wrong all along. The air friction causes the heavier ball to fall faster at a rate not observable at those small distances.
this is supposed to be very easy to figure out right? why is it 3+ mins long? if he had dropped it from the top a building, then it would be tricky as the trainer ball would hit ground first... any guesses!! huh, hunh...
It seems that the only thing that girl got from physics class is arrogance..
In high school and college level physics, the knowledge of the students is usually tested with simple enough questions that just learning how to apply the formulas robotically without actually understanding the concepts is enough.
Seriously, you don't need a grade 11 physics class to know that when the ball is initially released it has a speed of zero (in any unit you want to use). That's just common sense for crying out loud.
@N69sZelda I haven't even taken physics yet and I knew the correct answers to all of his questions. You learn this stuff in 8th grade science. I'm a junior now and I can still remember those lessons. It's not hard stuff.
The constant referred to is gravitation acceleration at 9.8m/s squared. The rate of acceleration is constant but acceleration by definition is increasing speed. Also consider terminal velocity.
In a vacuum there is no terminal velocity which is what this problem refers to. The more massive an object the more Fg can overcome an opposing force ie friction.
Oh, I was almost pulling my hair off my head listening to them... because many people I know would react the same. It isn't stupidity, it's just ignorance... I think... and a lack of curiosity... probably...
In a vacuum objects with dissimilar mass will fall equally to the same force - Newton. Add an atmosphere, resistance, terminal velocity will be reached unequally.
Just like to point out that actually which will hit the ground first is dependant on mass if at a sufficient height to reach terminal velocity before hitting the ground. Even if the area of crosssection is constant terminal velocity it still dependant on mass therefore after it has been reached for one object the other will increase velocity still. Alternativly you can keep mass the same and change the crosssection for a differnce in terminal velocity and hence time at which hit the ground.
@990blue990 Yeah I was thinking this. The aerodynamic drag has an effect. Correct me if I'm wrong(!) but even before the balls reach terminal velocity the ball with the higher drag to weight ratio will have slightly lower acceleration, and so will take slightly longer to hit the ground. This will have a much, much bigger effect than the gravitational field of the balls themselves that some people are talking about!
@1veritasium i was assumeing a controlled experiment, its general known they hit at the same time on earth because because sufficent hieght is not normally met, especially not in a controled experiment. I realise that in the video he says from above his head. but the description asks in general. My perdantics was just pointing out that the same time is not correct. Oh and for the dropper, just use a mechanical one to remove that problem.
@82NeXus Im not sure, else i would have said so in the privious comment. when i first learned about terminal velocity and acceleration due to gravity i had a massive argument with my science teacher over it, I refused to accept they would hit at the same time and she couldnt defend, but that was about the terminal velocity. If you want to confirm it, just find the equation and see if it contains mass as a varible.
So weight is mass x force of gravity. But how can you quantity mass without weight? Mass is not supposed to be relative, but that's not exactly true. All mass has gravity.
@xXRossyboyXx not all americans are complete dumbasses, some of us are hard working people who try to do good in school and in life, don't stereotype, please
@xXRossyboyXx Oh golly that's hysterical. Excuse me for being a "stupid" American but being Australian isn't a race, secondly I'm not even CLOSE to being racist, thirdly, he asked ONE person, for all you know that kid could've been completely bat shit crazy. Oh, by the way, I don't have to search up the dumb shit that goes on in my country, I already know all about it.
And one last thing, you're just as stupid as these kids for even trying to argue with a debate champ ;).
I'm not 100% on technical definitions. A lot of what is said seems questionable. The Earth's gravitational force on the two balls should be the *same*. The Earth is not more massive for one ball than the other. However the gravitational effect of the more massive ball with the Earth is greater. The ball is pulling the Earth as the Earth is pulling the ball which totals more force in the total system. More force in the system but more inertia to overcome, the balls fall the at same rate, mostly.
@meamone Once I'd interpreted your made-up definitions, yes, it's a well thought out idea, but it's not right. If the gravitational field strength of those balls was as strong as what you're saying, other objects, e.g. a table tennis ball, would get attracted and get stuck to them!
@82NeXus It may take me a day or two but I will get back to you more when I can. I just wanted to touch on two things quickly. One, I would recommend if you are trying to educate me on an error that you watch what you say a little more. "made-up definitions" gives me a first impression of a troll. If you are a troll then never mind. An example of a "made-up definition" would be:
@82NeXus (continued) "Gravity is a force created by the horns of dead unicorns. This force can act on objects to lift, hold, or bring down. More often than not this force brings things down due to unicorns liking to run on the Earth.". My other definitions were at least rooted in some science even if possibly, technically incorrect. Secondly, my major theme was more to the effect of using an umbrella term and assuming that it interchangeably with another term, like mass and weight. It doesn't..
@82NeXus ...Always work. I will look into the technical definitions and reply later. The only thing that makes me thing you are correct off the top of my head is the equation F=ma. This depends on what values get place where to represent that. The one thing that makes me think I'm correct is the water bottle experiment. Two water bottle with equal volume of water but different nozzle sizes, the water produces the same arc. Yes the force of gravity from the balls is small important in the system.
@meamone I can't be bothered to explain the whole thing right now. But, the balls' gravitational FIELDS are extremely tiny, the Earth's gravitational FIELD felt by both balls is the same as you say. The FORCE produced by this field is, however, larger, the greater the mass of the object, so it is larger for the higher mass ball. You are feeling this force directly when you feel the weight of any object. More mass also means more inertia though, resulting in the same acceleration.
Most of this is simply a lack of understanding of what the word force means.
Weight is a force (specifically gravitational force). As humans, this is also our most common experience of mass, which is (among other things) a measure of inertia, resistance of a change to acceleration. The force is greater, which is precisely why the acceleration is the same even though the heavier ball resists it more strongly.
As to why inertial and gravitational mass are the same? We don't really know.
technically, the acceleration due to gravity is greater for the heavier ball, but only by a very very small amount since earth has alot more mass than either balls.
@madnessdexter You're wrong in regards to Newtonian physics, I don't know what the result of General Relativity would say, but the acceleration due to gravity is the same, g, for both balls. However, if you also take air resistance into consideration the black ball should accelerate a little bit faster.
@Fuglebolle The gravitational acceleration is calculated using G*(mass of earth+mass of object)/r^2. Now what is the same is the G which is the gravitational constant, and the mass of earth but the mass of object changes. So technically(like i said) the object with more mass would feel a stronger gravitational acc. Its only by a very very small amount(in the 10e-24 range since the total mass changes by that range).
@madnessdexter You're talking about the gravitational force (F_G = G*m*M/r^2, where M is the mass of Earth and m the mass of the ball), this differs significantly between the two balls (the masses are multiplied, so double mass gives double force). However, the acceleration is force divided by mass, so a = F_G/m = G*M/t^2, which is independent of m (the mass of the ball).
@Fuglebolle right, gmM/r^2 is what the ball feels from the gravity of the earth, but earth also feels a small gravitational force from the ball. So the heavier ball exerts higher gravitational force on the earth compared to the lighter ball. That means that the earth moves just very small amount more for the heavier ball than the lighter ball. So overall acceleration is higher, since the overall acceleration is the a of the ball and a of earth added together.
@madnessdexter I'm sorry, I understand what you're saying now, and you are of course right. If the balls were dropped one by one in stead of together the acceleration of Earth toward the ball would be a little greater for the one with larger mass.
@madnessdexter It's worth pointing out though, that most of the acceleration of the Earth is due to it's own gravitational field, not that of the ball. That is, you add up the strength of the two fields, the 9.81 N/kg caused by the Earth and the minute field strength of the ball, and that is the force on BOTH objects, which is equal and opposite.
@burninmunkeys ok fair enough. but if you jump of a plane and have someone throw a penny out you will hit the ground first, because the turminal velocity of humans id around 200 mph. the turminal velocity of a penny is 65 mph. and thats if you and the penny are going straight down (with the least air resistance)
Gravitation force is different on everything of different mass, the difference on earth though is negligible. They have plenty of equations to determine the gravitational force between two objects. Ones with more mass have more gravitational pull.
im at 0:30 right now And im about to explain this. the heavier one will fall slower because its heavier and that it has more restistance from the wind.
Therefore i say the and then they will both fall at the same time
@Evilgames1 Weight has nothing to do with resistance from wind. The only factors of wind resistance are the surface area and the speed of the object. The medicine ball has greater mass and therefore greater resistance to change and that is why it accelerates at a the same rate as the basket ball.
sigh, acceleration is not force people. force=massxacceleration. Gravity makes everything move at the same acceleration but uses more force to do that to larger objects. Thank you Newton.
I love how all these college students are trying to say they took physics and therefore they're right when no physics teacher in the world would tell them these things... except maybe Aristotle
Weight is the measure of how much an object is affected by gravity, so why would people think that the objects have the same gravitational force acting upon them is the weight is clearly different????
the heavier ball has a larger mass which gives it a larger gravitational pull
but because of its larger mass it requires more energy to pull it at the same rate as it would for the basket ball, is why the balls fall at the same time
I don't think you understand what I mean. Assume that the heavy ball has the same mass as the earth, the light ball has almost no mass. Both balls are accelerate by earth to the same speed, only difference is, that the heavy ball also accelerates earth towards itsself, while the light ball does so only very slightly. So the earth will accelerate towards the heavy ball and standing on the earth, the heavy ball would appear to fall twice as fast as the light one.
whats up with the stupid Einstein is Che shirt? If you had any clue about history as you seem to have about science you'd should be quite ashamed to wear it.
@currysteph Are you sure it's not a little statement on how we put the face of a guerilla fighter on t-shirts and idolize him, when we actually should be idolizing Einstein and other great minds?
@currysteph There's no doubt the whole Che Guevara worship has gone way way too far, only a little being the right amount, and I'm honestly a little surprised he isn't meshed into more pictures.
Hey. It might just be a "Ahh, you expected Che on this shirt didn't you? Well I'm a science guy, so it's Albert. Yeah, I am clever enough to buy that shirt, aren't I cool?" Thing.
There's far too little information to make assumptions
I think he is....kinda a smartass - i knew it and i knew the reason, but it was weird how me made them nervously change their answers, just to say that they were right at first.
Heavier objects fall faster if your frame of reference is the Earth, rather than, as is usually the case, yourself.
Using youf video on explaining Newtons 3rd law of motion as an example, I say to you, the ball pulls on the Earth too, therefore there is an 'effect(acceleration)' applied to the Earth by the ball. The greater the mass of the ball, the greater the effect. Most people would call it negligable, and then completely disregard it. It IS still there, though.
@Multihuntr0 Might as well incorporate the movement of the earth around the solar system's center of mass and the fact that you drop the 2 balls from slightly different locations. And in every single imaginable case, air resistance will play a more significant role than both. Which is actually why you can instantly disreguard them: they're less important than another effect that you already disreguarded.
@TakesTwoToTango Yeah, you're right... However, what I wanted to point out was that assuming all other factors are the same, a difference in weight WILL affect how fast something falls. It's just that the sheer difference in size between the Earth and a ball is too great for us to notice the difference between a 0.5kg or 10kg ball.
wow? this is like grade 6 shit
sniperdft 6 minutes ago
Oh, Blondies...
Tunatunatun 17 hours ago
Was this recorded in the US or Aussie?
fallingfromjupiter 18 hours ago
are some of them actually physics students? "This is what we learn in physics..." seriously?
MikeHorrell28 1 day ago
Newton's second law: F=MA can explain this very easily ...
mrlavabo 1 day ago
F=G(gravitational constant)X Mass 1(earth)X Mass 2 (ball), divided by radius distance between centre of objects squared
medicin ball would accelerate faster and hit the ground first, but with such a miniscule difference that there isn't techonolgy out there to observe the difference
petey19d 1 day ago
@petey19d No, no, no! the force is different but the acceleration is not. The accelerations are exactly the same. Air resistance also has virtually zero effect on this scale.
1veritasium 1 day ago
this guys stupid. everything he is saying is true in a theoretical evironment. forgot air resistance tho black ball falls stightly faster
hmehlenbacher 2 days ago
@hmehlenbacher everything he says is true in a real environment - this is not just theory. With or without air resistance the black ball accelerates at the same rate. Air resistance has a negligible effect at these speeds.
1veritasium 1 day ago
but gravity dictates weight :(
dramasticlyclever 2 days ago
Where did he film the videos?
DarkZuiK 2 days ago
@DarkZuiK At the University of Sydney. But I bet you would find the same result virtually anywhere.
1veritasium 1 day ago
F = MA
sanctious 2 days ago
1:56 "No, I said the weight is different, I didn't say the pull was different." OH MY GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOD
CYBERBARBARIAN 2 days ago
Gravitational mass and inertial mass are identical (or at least very, very, very, very similar), therefore magic!
MrTanookiMario 2 days ago
WOW. I thought this was going to be about drag...
DoctorFastest 2 days ago
@DoctorFastest same
hmehlenbacher 2 days ago
is there a type???to these two powers?
smallaxe1980 2 days ago
I am not so sure that this is a conceptual problem so much as a terminology problem. It seems like they are using field force to mean field, and velocity to mean acceleration.
michalchik 2 days ago
@michalchik if you are using the word velocity to mean acceleration, that is a conceptual problem.
1veritasium 1 day ago
@1veritasium It can be indicative of a conceptual problem but does not have to be. You may use the word "green" to refer to the color of a clover, a lime and a pine tree, but that does not mean you don't understand that the colors are not the same. The way you could distinguish this is to give them the definitions of the words ahead of time and then ask them if objects fall at constant velocities, accelerations or neither.
michalchik 1 day ago
@michalchik true, but velocity and acceleration are not as similar as different shades of green. And second I'm pretty sure all of these people could give me reasonably good definitions of constant velocity and acceleration. Course it never hurts to ask.
1veritasium 1 day ago
This would be easy to answer except this guy is purposely confusing them. He would interchange weight (Fg) with gravitational force(Fg) but they are the same thing but the people though he meant gravitational force (Fg) as in the gravitational pull (g).
Im 2 months into Physics 11 and i know the difference but this guy is screwing with them. Understandably i think he was doing this to see if they were just agreeing with what he was saying blindly or not.
mrimover18forsuremhm 2 days ago 8
@mrimover18forsuremhm there was no aim to confuse. Weight, gravitational force, and gravitational pull are all the same thing (Fg). Gravitational acceleration is different. I used the words they used.
1veritasium 1 day ago
@1veritasium Yes, but they're using "force" to mean "gravitational field"... I think. Trying to work out what I was thinking I noticed that I do not instinctivly explain the physics correctly.
AdderSIG 1 day ago
@1veritasium Weight does not equal the gravitational pull. Weight depends on acceleration, gravitational pull doesn't.
Gytax0 1 day ago
@Gytax0 Wrong. Weight IS gravitational pull, as in that is the DEFINITION of the word weight. Weight doesn't depend on anything except your position in a gravitational field and your mass.
hooloovoo1st 4 hours ago
You forgot to tell them about drag! If your balls dropped from a high distance, the heavier one would reach the ground first!
whiteguy128 3 days ago
@1veritasium I heard you teach at usyd. Im going to usyd this year. What courses do u teach?
PhobiaPhobo 3 days ago
@PhobiaPhobo I don't teach at used at the moment :(
1veritasium 1 day ago
@PhobiaPhobo bl son
iLdrareG 1 day ago
@iLdrareG mfw.... Fwark dis veritasium biggest troll
PhobiaPhobo 1 day ago
Where do you find these people?
jordanpasek 3 days ago 3
@jordanpasek They are everywhere.
1veritasium 3 days ago 15
@1veritasium Terrifying, simply terrifying.
jordanpasek 2 days ago
Yeah weight isn't a force blondie
TurriPi 3 days ago
@TurriPi Weight is a force. F=ma. Weight = 'mass' x 'acceleration due to gravity'.
KoreaRwkz 3 days ago
@KoreaRwkz it was scarcasm lol
TurriPi 1 day ago
@TurriPi Oh, sorry.
KoreaRwkz 23 hours ago
Lol the blonde. 'But scientifically speaking...' :P :P :P overdo much?
Sh4d0wQu33n 3 days ago
Technically @ 1:44 There are certain parts of the world that have higher or lower gravitational pull based on how land mass and certain elements are deposited throughout the earth..
hellhowitzer 4 days ago
If only he asked me.
MurkleBizzle 4 days ago
@MurkleBizzle word...
2menace 4 days ago
fucking morons.
MurkleBizzle 4 days ago
What about air resistance?
links212 4 days ago
@links212 its basicly equal because the balls are the same size and shape
PRiiZMx 4 days ago
How can people be so stupid to say they go at a constant speed? What happens when you hold the ball? It stays still. And when you let it go? It starts moving downwards, there is no sudden jump in speed, it accelerates faster all the time from zero until it hits the ground, or when the air resistance becomes too big. God that made me feel smart. lol
Fredde1Widde 4 days ago
@Fredde1Widde I don't know if you just made a typo, but the acceleration, 9.8 m/s^2, is constant, it's the velocity which increases
vilondero 4 days ago
@vilondero oops, yes, not accelerates faster.. my bad lol
Fredde1Widde 3 days ago
This made me feel intelligent :D
anuragborn2rock 4 days ago
Weight is a measure of force for fucks sake. The acceleration due to gravity is constant on all objects, but the mass of an object determines the force i.e. weight of an object being dropped on Earth up until terminal velocity. That is when the force of wind resistance is equal to that of weight impaired by friction.
MusicalAndTall 4 days ago
@MusicalAndTall Which puts it in the state of equilibrium causing it to neither accelerate nor decelerate.
ThePeo000 4 days ago
@ThePeo000 No shit :)
MusicalAndTall 4 days ago
Some people are retarded :/
MusicalAndTall 4 days ago
Inertia? WTF is he talking about? It's all about mass.
CrusstyJugglers 5 days ago
Anyone hear what he said at the end? INERTIA? Go back to school y'all! The "Force" acting upon the balls is gravity. Dropped @ the same time, heavier ball takes LONGER to get to top speed. The heavier one would then ultimately drop FASTER when it reaches it's max speed because of the force of gravity on an object having more mass...In this test...it appears even...in a longer drop, black ball would be farther ahead by far...
TreeTopGenius 5 days ago
@TreeTopGenius Yeah, but It'd have to be a really really long drop though wouldn't it?
Riou2294 4 days ago in playlist Uploaded videos
If you get both balls drop them out of a plane the black ball will hit first because it has a greater terminal velocity. At a short distance like that the effects are very subtle so it appears that they hit at the same time.
Horde4th3win 5 days ago
The heavier ball should, in theory, hit the ground first even on an airless body such as the moon as the heavier ball has greater mass, and therefore a slightly greater gravity of its own. Strange, unnoticeable, but true.
DrewMek 5 days ago
@DrewMek Did not see other comment by LefthandedLeftenant. Whoops.
DrewMek 5 days ago
AMERICANS.
1055boy 5 days ago
listen to the blonde girl, *facepalm*
Nadeeja94 5 days ago
Aliens.
dotoner123 6 days ago
@versiera if you want to be pedantic about it you could also say that the black ball has a greater mass; therefore a stronger gravitational pull on the earth towards it
LefthandedLeftenant 6 days ago
The worst part is that he is wrong all along. The air friction causes the heavier ball to fall faster at a rate not observable at those small distances.
versiera 6 days ago
this is supposed to be very easy to figure out right? why is it 3+ mins long? if he had dropped it from the top a building, then it would be tricky as the trainer ball would hit ground first... any guesses!! huh, hunh...
sidhunp 6 days ago
@sidhunp Drag.
Mitarohmar 6 days ago
@Mitarohmar DiiiiiG!
sidhunp 6 days ago
-mg=ma ----> -g=a
Epicdemicz 6 days ago
The blonde is a perfect example of the Dunning - Kruger effect.
milosQaX 6 days ago
That blonde girl was a dumb ass.
LorneRossbach 6 days ago 4
2 neurons in my brain just commited suicide...
MrDanAlonzo 1 week ago
Isn't it funny when a chick attempts to be smart.
zymuur 1 week ago 105
@zymuur I will still bone her dumb ass.
bricejohnson2003 2 days ago
It seems that the only thing that girl got from physics class is arrogance..
In high school and college level physics, the knowledge of the students is usually tested with simple enough questions that just learning how to apply the formulas robotically without actually understanding the concepts is enough.
arthurthegreat 1 week ago 5
lol........... balls
BerserkerLemon 1 week ago
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vor1597 1 week ago
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vor1597 1 week ago
... hes at Hogwarts in shot with him just talking
CollegialResemblance 1 week ago
is it bad that im screaming out the real reason for these things at the people that slept through there high school sience class
the same way i slept through my spelling classes
Cires1987 1 week ago
some people's stupidity makes my skin crawl
ElmertheEmoEmu 1 week ago
this guy is trying to just make people look bad. these guys are in class what do you expect!
N69sZelda 1 week ago
@N69sZelda
Seriously, you don't need a grade 11 physics class to know that when the ball is initially released it has a speed of zero (in any unit you want to use). That's just common sense for crying out loud.
JamesThWilliams 1 week ago 3
@N69sZelda I haven't even taken physics yet and I knew the correct answers to all of his questions. You learn this stuff in 8th grade science. I'm a junior now and I can still remember those lessons. It's not hard stuff.
ImTheBlackJesus 1 week ago
@ImTheBlackJesus In seventh I have already learned this stuff. It agree it is really easy.
cweida111 1 week ago
The constant referred to is gravitation acceleration at 9.8m/s squared. The rate of acceleration is constant but acceleration by definition is increasing speed. Also consider terminal velocity.
Son0fHobs 1 week ago
@Son0fHobs
In a vacuum there is no terminal velocity which is what this problem refers to. The more massive an object the more Fg can overcome an opposing force ie friction.
JamesThWilliams 1 week ago
I did this experiment at home. My balls used the force...
Tridecalogism 1 week ago 3
It's always fun to watch people make idiots of themselves.
Understandable and not surprising, but still fun.
martixbg 1 week ago
Oh, I was almost pulling my hair off my head listening to them... because many people I know would react the same. It isn't stupidity, it's just ignorance... I think... and a lack of curiosity... probably...
*whispering* nobody's gonna read this anyway
MiniGeek31337 1 week ago
DA FAWCE IZ DA SAYME!
MrPuddingTaco 1 week ago
such basic physics
BenjyKyleAtkinson 1 week ago
55 people can't comprehend physics.
ianalexander92 1 week ago
hahaha. the random creeper at 0:54
commensensetv 1 week ago 49
@commensensetv Best part.
aRandomCitizenofUSA 1 week ago
Nor the black one or the basketball hit the ground first. It was the pink one.
StMaritime 1 week ago in playlist Weitere Videos von 1veritasium
Jay walking, but with harder questions
AV8OR73 1 week ago
oopp.
drmgu 1 week ago
That's pretty cool.
frenzotakissammj 1 week ago
why does this place look like my uni lol.
leekymkween 1 week ago
@leekymkween oh right, cause it is, derp lol.
leekymkween 1 week ago
In a vacuum objects with dissimilar mass will fall equally to the same force - Newton. Add an atmosphere, resistance, terminal velocity will be reached unequally.
aldolh48 1 week ago
Just like to point out that actually which will hit the ground first is dependant on mass if at a sufficient height to reach terminal velocity before hitting the ground. Even if the area of crosssection is constant terminal velocity it still dependant on mass therefore after it has been reached for one object the other will increase velocity still. Alternativly you can keep mass the same and change the crosssection for a differnce in terminal velocity and hence time at which hit the ground.
990blue990 1 week ago
@990blue990 Yeah I was thinking this. The aerodynamic drag has an effect. Correct me if I'm wrong(!) but even before the balls reach terminal velocity the ball with the higher drag to weight ratio will have slightly lower acceleration, and so will take slightly longer to hit the ground. This will have a much, much bigger effect than the gravitational field of the balls themselves that some people are talking about!
82NeXus 1 week ago
@82NeXus But both effects, over the distances involved, are negligible compared to say the dropper's ability to release them both simultaneously.
1veritasium 1 week ago
@1veritasium i was assumeing a controlled experiment, its general known they hit at the same time on earth because because sufficent hieght is not normally met, especially not in a controled experiment. I realise that in the video he says from above his head. but the description asks in general. My perdantics was just pointing out that the same time is not correct. Oh and for the dropper, just use a mechanical one to remove that problem.
990blue990 1 week ago
@82NeXus Im not sure, else i would have said so in the privious comment. when i first learned about terminal velocity and acceleration due to gravity i had a massive argument with my science teacher over it, I refused to accept they would hit at the same time and she couldnt defend, but that was about the terminal velocity. If you want to confirm it, just find the equation and see if it contains mass as a varible.
990blue990 1 week ago
0:55 beast head wave ;)
Metzman24 1 week ago
So weight is mass x force of gravity. But how can you quantity mass without weight? Mass is not supposed to be relative, but that's not exactly true. All mass has gravity.
yadidimeanmaine 1 week ago
Weight is the same as gravitational pull you boobs, gravity is what makes something heavy!!!
LEGOmations0091 1 week ago
Well I've decided its a fact that as soon as you step into Australia, you're retarded.
HaxIsMyName 1 week ago
@HaxIsMyName im from australia and we know what tomato's are
jamie oliver went to america, held up a tomato and asked a school student what it was
he said a potato
Also In America Instead Of Having more vegetables in a food menu
guess what
they made pizza a vegetable
search it up you racist asshole
xXRossyboyXx 1 week ago
@xXRossyboyXx Yeah, America's pretty famous for having an awful educational system.
9hello123 1 week ago
@xXRossyboyXx not all americans are complete dumbasses, some of us are hard working people who try to do good in school and in life, don't stereotype, please
TheConcreteSnowman 1 week ago
@xXRossyboyXx Oh golly that's hysterical. Excuse me for being a "stupid" American but being Australian isn't a race, secondly I'm not even CLOSE to being racist, thirdly, he asked ONE person, for all you know that kid could've been completely bat shit crazy. Oh, by the way, I don't have to search up the dumb shit that goes on in my country, I already know all about it.
And one last thing, you're just as stupid as these kids for even trying to argue with a debate champ ;).
HaxIsMyName 1 week ago
the two balls are the same size.
the black ball heavier than the orange - however
the black ball required more time to accelerate because it is more massive
4forpengs 2 weeks ago
why are blondes so dump
zeroin1330 2 weeks ago
@zeroin1330 I don't know but you just wrote with no capital letter, no question mark and spelt dumb dump.
iPerformMagic 2 weeks ago
A clever hot blonde.
WHY DID YOU LET HER WALK AWAY?!
LomTang 2 weeks ago
I'm not 100% on technical definitions. A lot of what is said seems questionable. The Earth's gravitational force on the two balls should be the *same*. The Earth is not more massive for one ball than the other. However the gravitational effect of the more massive ball with the Earth is greater. The ball is pulling the Earth as the Earth is pulling the ball which totals more force in the total system. More force in the system but more inertia to overcome, the balls fall the at same rate, mostly.
meamone 2 weeks ago
@meamone Once I'd interpreted your made-up definitions, yes, it's a well thought out idea, but it's not right. If the gravitational field strength of those balls was as strong as what you're saying, other objects, e.g. a table tennis ball, would get attracted and get stuck to them!
82NeXus 1 week ago
@82NeXus It may take me a day or two but I will get back to you more when I can. I just wanted to touch on two things quickly. One, I would recommend if you are trying to educate me on an error that you watch what you say a little more. "made-up definitions" gives me a first impression of a troll. If you are a troll then never mind. An example of a "made-up definition" would be:
meamone 1 week ago
@82NeXus (continued) "Gravity is a force created by the horns of dead unicorns. This force can act on objects to lift, hold, or bring down. More often than not this force brings things down due to unicorns liking to run on the Earth.". My other definitions were at least rooted in some science even if possibly, technically incorrect. Secondly, my major theme was more to the effect of using an umbrella term and assuming that it interchangeably with another term, like mass and weight. It doesn't..
meamone 1 week ago
@82NeXus ...Always work. I will look into the technical definitions and reply later. The only thing that makes me thing you are correct off the top of my head is the equation F=ma. This depends on what values get place where to represent that. The one thing that makes me think I'm correct is the water bottle experiment. Two water bottle with equal volume of water but different nozzle sizes, the water produces the same arc. Yes the force of gravity from the balls is small important in the system.
meamone 1 week ago
@meamone I can't be bothered to explain the whole thing right now. But, the balls' gravitational FIELDS are extremely tiny, the Earth's gravitational FIELD felt by both balls is the same as you say. The FORCE produced by this field is, however, larger, the greater the mass of the object, so it is larger for the higher mass ball. You are feeling this force directly when you feel the weight of any object. More mass also means more inertia though, resulting in the same acceleration.
82NeXus 1 week ago
Most of this is simply a lack of understanding of what the word force means.
Weight is a force (specifically gravitational force). As humans, this is also our most common experience of mass, which is (among other things) a measure of inertia, resistance of a change to acceleration. The force is greater, which is precisely why the acceleration is the same even though the heavier ball resists it more strongly.
As to why inertial and gravitational mass are the same? We don't really know.
Melkarion 2 weeks ago
technically, the acceleration due to gravity is greater for the heavier ball, but only by a very very small amount since earth has alot more mass than either balls.
btw this vid made me sad.
madnessdexter 2 weeks ago
@madnessdexter You're wrong in regards to Newtonian physics, I don't know what the result of General Relativity would say, but the acceleration due to gravity is the same, g, for both balls. However, if you also take air resistance into consideration the black ball should accelerate a little bit faster.
Fuglebolle 2 weeks ago
@Fuglebolle The gravitational acceleration is calculated using G*(mass of earth+mass of object)/r^2. Now what is the same is the G which is the gravitational constant, and the mass of earth but the mass of object changes. So technically(like i said) the object with more mass would feel a stronger gravitational acc. Its only by a very very small amount(in the 10e-24 range since the total mass changes by that range).
madnessdexter 2 weeks ago
@madnessdexter You're talking about the gravitational force (F_G = G*m*M/r^2, where M is the mass of Earth and m the mass of the ball), this differs significantly between the two balls (the masses are multiplied, so double mass gives double force). However, the acceleration is force divided by mass, so a = F_G/m = G*M/t^2, which is independent of m (the mass of the ball).
Fuglebolle 2 weeks ago
@Fuglebolle right, gmM/r^2 is what the ball feels from the gravity of the earth, but earth also feels a small gravitational force from the ball. So the heavier ball exerts higher gravitational force on the earth compared to the lighter ball. That means that the earth moves just very small amount more for the heavier ball than the lighter ball. So overall acceleration is higher, since the overall acceleration is the a of the ball and a of earth added together.
madnessdexter 1 week ago
Comment removed
Fuglebolle 1 week ago
@madnessdexter I'm sorry, I understand what you're saying now, and you are of course right. If the balls were dropped one by one in stead of together the acceleration of Earth toward the ball would be a little greater for the one with larger mass.
Fuglebolle 1 week ago
@madnessdexter It's worth pointing out though, that most of the acceleration of the Earth is due to it's own gravitational field, not that of the ball. That is, you add up the strength of the two fields, the 9.81 N/kg caused by the Earth and the minute field strength of the ball, and that is the force on BOTH objects, which is equal and opposite.
82NeXus 1 week ago
@Anthonyk312 wow thats some argument u got there lol :P
Subscriber9192 2 weeks ago
Blondes...
luckylunatik1 2 weeks ago
uhm ok
rikkmode 2 weeks ago
"Same time." "I think they'll land at the same time." "Same time."
"Everyone thinks the heavy one will land first omg!!!11"
apophis77 2 weeks ago
@burninmunkeys ok fair enough. but if you jump of a plane and have someone throw a penny out you will hit the ground first, because the turminal velocity of humans id around 200 mph. the turminal velocity of a penny is 65 mph. and thats if you and the penny are going straight down (with the least air resistance)
Subscriber9192 2 weeks ago
Lol WTF is this guy doing in the background? 0:54
remixfulchannel 2 weeks ago
OK for preschool, but it is much more complex in reality
ezland100 2 weeks ago
Gravitation force is different on everything of different mass, the difference on earth though is negligible. They have plenty of equations to determine the gravitational force between two objects. Ones with more mass have more gravitational pull.
burninmunkeys 2 weeks ago
ya but if you drop a piano and a rock off a building the piano is ggoing to hit the ground first...
Subscriber9192 2 weeks ago
@Subscriber9192 No. It won't.
burninmunkeys 2 weeks ago
@Subscriber9192 no it isn't/
Anthonyk312 2 weeks ago
im not really sure you know wtf you're talking about either...
danieltsmoke 2 weeks ago
im at 0:30 right now And im about to explain this. the heavier one will fall slower because its heavier and that it has more restistance from the wind.
Therefore i say the and then they will both fall at the same time
Evilgames1 2 weeks ago
@Evilgames1 Weight has nothing to do with resistance from wind. The only factors of wind resistance are the surface area and the speed of the object. The medicine ball has greater mass and therefore greater resistance to change and that is why it accelerates at a the same rate as the basket ball.
JarHeadRich 2 weeks ago
@JarHeadRich wait what
Evilgames1 2 weeks ago
where did you get that shirt!
robthebuilder321 2 weeks ago
0:54 Creepy cameo
Pingu2010 2 weeks ago
sigh, acceleration is not force people. force=massxacceleration. Gravity makes everything move at the same acceleration but uses more force to do that to larger objects. Thank you Newton.
Linkfanoftheyear 2 weeks ago
like in real life?
lendial 2 weeks ago
I love how all these college students are trying to say they took physics and therefore they're right when no physics teacher in the world would tell them these things... except maybe Aristotle
wordlife94 2 weeks ago
Weight is the measure of how much an object is affected by gravity, so why would people think that the objects have the same gravitational force acting upon them is the weight is clearly different????
G0ldkloud 2 weeks ago
@G0ldkloud Maybe because they're hurrr durrr
xGetSmoked 6 days ago
Where were you when you made this video???? I make about 6 differen accents out
G0ldkloud 2 weeks ago
@G0ldkloud *different
G0ldkloud 2 weeks ago
At 0:35 it totally looks like a place where part of the second Harry Potter movie was recorded!!
SkidRowRockstar 2 weeks ago
But shouldn't the heavy ball fall slightly faster? It has more mass and should thus pull the earth stronger towards itself.
konnew88 2 weeks ago
@konnew88
thats what he said at the end about inertia.
the heavier ball has a larger mass which gives it a larger gravitational pull
but because of its larger mass it requires more energy to pull it at the same rate as it would for the basket ball, is why the balls fall at the same time
GoodCat01210 2 weeks ago
@GoodCat01210
I don't think you understand what I mean. Assume that the heavy ball has the same mass as the earth, the light ball has almost no mass. Both balls are accelerate by earth to the same speed, only difference is, that the heavy ball also accelerates earth towards itsself, while the light ball does so only very slightly. So the earth will accelerate towards the heavy ball and standing on the earth, the heavy ball would appear to fall twice as fast as the light one.
konnew88 2 weeks ago
whats up with the stupid Einstein is Che shirt? If you had any clue about history as you seem to have about science you'd should be quite ashamed to wear it.
currysteph 2 weeks ago
@currysteph Are you sure it's not a little statement on how we put the face of a guerilla fighter on t-shirts and idolize him, when we actually should be idolizing Einstein and other great minds?
WlatPziupp 2 weeks ago
@WlatPziupp ...exactly my point....but to compare einstein to che? I dont get it...and the flag flying in the background is Che...
currysteph 2 weeks ago
@currysteph There's no doubt the whole Che Guevara worship has gone way way too far, only a little being the right amount, and I'm honestly a little surprised he isn't meshed into more pictures.
Hey. It might just be a "Ahh, you expected Che on this shirt didn't you? Well I'm a science guy, so it's Albert. Yeah, I am clever enough to buy that shirt, aren't I cool?" Thing.
There's far too little information to make assumptions
WlatPziupp 2 weeks ago
I think he is....kinda a smartass - i knew it and i knew the reason, but it was weird how me made them nervously change their answers, just to say that they were right at first.
DerBegginBlue 2 weeks ago
that blonde chick "i did pretty well in physics" and everything she said was WRONG! classy
waqarwillrocku 2 weeks ago in playlist More videos from 1veritasium
Heavier objects fall faster if your frame of reference is the Earth, rather than, as is usually the case, yourself.
Using youf video on explaining Newtons 3rd law of motion as an example, I say to you, the ball pulls on the Earth too, therefore there is an 'effect(acceleration)' applied to the Earth by the ball. The greater the mass of the ball, the greater the effect. Most people would call it negligable, and then completely disregard it. It IS still there, though.
Multihuntr0 3 weeks ago
@Multihuntr0 Might as well incorporate the movement of the earth around the solar system's center of mass and the fact that you drop the 2 balls from slightly different locations. And in every single imaginable case, air resistance will play a more significant role than both. Which is actually why you can instantly disreguard them: they're less important than another effect that you already disreguarded.
TakesTwoToTango 2 weeks ago
@TakesTwoToTango Yeah, you're right... However, what I wanted to point out was that assuming all other factors are the same, a difference in weight WILL affect how fast something falls. It's just that the sheer difference in size between the Earth and a ball is too great for us to notice the difference between a 0.5kg or 10kg ball.
Multihuntr0 2 weeks ago